VMware vsphere 고가용성(High Availability)의 차이점

고가용성의 핵심은 당연히 데이터보호입니다. 하드웨어 장애에 대한 보호,다운타임없는 계획된 유지 관리, 예상지못한 다운타임 및 재해에 대한 보호가 목적이고,  고가용성은 최적시간동안 계속 작동되게 하는것입니다. HA랑 FT 그리고 MS의 MSCS의 차이점입니다. 예전에 운영했던 Mimix(Double take)도 같이 구분을 할랬는데...사용하지 않아서 생략했습니다.<strike>(요즘 mimix쓰는 곳 있을까요?)</strike>  <table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" style="border-collapse:collapse;border:none;mso-border-alt:solid windowtext .5pt; mso-yfti-tbllook:1184;mso-padding-alt:0cm 5.4pt 0cm 5.4pt"> <tbody><tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:36.8pt"> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;mso-border-alt: solid windowtext .5pt;background:#548DD4;mso-background-themecolor:text2; mso-background-themetint:153;padding:0cm 5.4pt 0cm 5.4pt;height:36.8pt">   </td> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;border-left: none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt; background:#548DD4;mso-background-themecolor:text2;mso-background-themetint: 153;padding:0cm 5.4pt 0cm 5.4pt;height:36.8pt"> HA </td> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;border-left: none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt; background:#548DD4;mso-background-themecolor:text2;mso-background-themetint: 153;padding:0cm 5.4pt 0cm 5.4pt;height:36.8pt"> FT </td> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;border-left: none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt; background:#548DD4;mso-background-themecolor:text2;mso-background-themetint: 153;padding:0cm 5.4pt 0cm 5.4pt;height:36.8pt"> MSCS </td> </tr> <tr style="mso-yfti-irow:1;height:30.95pt"> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;border-top: none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> Service Target </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> Esxi Host </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> VM </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> APP </td> </tr> <tr style="mso-yfti-irow:2;height:30.95pt"> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;border-top: none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> Down Time </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> minimum </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> Zero Downtime </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> minimum </td> </tr> <tr style="mso-yfti-irow:3;height:30.95pt"> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;border-top: none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> Supported OS </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> all </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> Limited </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> windows OS </td> </tr> <tr style="mso-yfti-irow:4;mso-yfti-lastrow:yes;height:30.95pt"> <td width="154" style="width:115.3pt;border:solid windowtext 1.0pt;border-top: none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> Limitation </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> required Cluster Shared Storage </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> support 4vcpu </td> <td width="154" style="width:115.3pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt;height:30.95pt"> windows OS License </td> </tr> </tbody></table> 끝.